The invention discloses a safety height limiting device for a lifting machine. The safety height limiting device comprises a lifting drum shaft, an outer shaft sleeve, an inner shaft sleeve, a shaft end through cover, a height instrument, a shaft end gland and bearings. The front end of the inner shaft sleeve is embedded in the shaft end of the lifting drum shaft. The connecting end of the height instrument 5 is embedded in the inner shaft sleeve. The outer shaft sleeve is arranged on the outer ring, exposed out of the shaft end of the lifting drum shaft, of the inner shaft sleeve in a sleeving manner. The inner rings of the bearings are fixed to the outer ring of the shaft end of the lifting drum shaft. The shaft end through cover is connected with the outer rings of the bearings. An inner hole of the shaft end through cover penetrates the outer diameter part of the outer shaft sleeve. The shaft end gland is fixedly connected with the shaft end through cover to fix the outer shaft sleeve to the shaft end of the lifting drum shaft. The number of circles of the height instrument is adjusted according to the requirement for the lifting height on the field, and speed ratio model selection of the height instrument is conducted according to the requirement for parameters of the lifting machine. The safety height limiting device has the beneficial effects that the structure is compact, the adjusting range is wide, data are accurate, installation is convenient, and manufacturing cost is low.
Safety height limiting device for lifting machine
2016-02-03
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
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